Die used in making type shuttles for typewriting machines



Aug. 6, 1935. H. L. PITMAN 2,010,033

DIES USED IN MAKING TYPE SHUTTLIES FOR TYPEWRITING' MACHINES 7 Original Filed March 19, 1931 2 Sheets-Sheet 1 o INVENTOR} 3 Henry L. P/fman.

Aug. 6, 1935. H. PITMAN 2,010,033

DIES USED IN MAKING TYPE HUTTLES FOR TYPEWRITING MACHINES Original Filed March 19, 1931 2 Sheets-Sheet 2 E45. Fig.6

INVENTOR Henry L. PIT/nan wWflw ATTORNEY Patented Aug. 6, 1935 .DIE USED IN MAKING '11. RE SHUTTLES FOR TYPEWRITING MACHINES- Hcnry L. Pitman, Wcstfiel d, N. J., assignor, by

mesne assignments, to Ralph C. Coxhead Corporation, New York, N. Y.

Delaware a corporation of Original application March 19, 1931, Serial No. 523,920. Divided and this application Novemter 15, 1932, Serial Nb. 6 4 2.75}?

. '22 Claims.

serial No. 523,919, filed March 19, 1931. The shuttle which is made by the die of the present invention is formed of a piece of light weight and strong sheet metal such as duralumin or the like. A flat blank is first stamped from the sheet of material and said blank is then curved and suitable flanges bent in thereon at its upper and lower edges.

The partially formed shuttle is then placed into the die and suitable rolling means caused to engage the back of the shuttle to flow the metal on the opposite side into the type intaglios of the die to thus form the types on the shuttle.

Provision is made in the die to prevent distortion of the shuttle and to prevent the metal from flowing in the direction of rotation of the rolling means to thus prevent shearing of the types, at the end of the shuttle, from the body part of said shuttle. y 7

Other features and advantages, relating to the construction of the die, will hereinafter appear.

In the dr fication.

awings which form part of. the speci- Fig.1 is a front .view, partly in section, of the die showing two shuttles therein;

a vertical section taken on the line Fig. .3 is

the die disassembled;

. Fig. 4 is die unit at Fig. .5 is an a view similar to Fig 1 but Showing an end view ofthe interior of the the right Fig. 3;

elevation .of one of two detachable flanges of the die;

, Fig. Bis Fig. 7 is a similar view of the other flange; asectionalview of a portion of one of the die sections; and

Fig. 8 is a View of a partly formed shuttle.

.Similar reference characters represent similar'parts throughout the several views.

he die 3 1 comprises detachable sections 3 2, 3.3,

.34 and 3 5, whichmay be assembled, in a manner hereinafter described, an it may then be supported by the jaws 36 of a stationary chuck.1 The sections, after they are assembled, form a circular apert ure .30 into which are placed one or Qt; (Figs. .1

a d intaglio in Sand e 'to form wafdly extending flanges types 43 on the convexed face of the type shuttle, the type intaglios 42 being engraved in the surface of the die bordering the aperture 39 of the die, and arranged in a plurality of rowson each die section, see Fig. 4. It will be understood that 5 die sections 32 and 33 form the types on one of the shuttles, and the die sections 34 and 35 form the types on the other shuttle. Thus the sections 32 and 33'as well as the sections 34 and 35 are compleinental diese ctions. The die 3|, as previously stated, is composed of feur sections 32 33, 34 and 35, and, after the types are engraved therein, they are hardened so as to stand up during its subsequent use in the manuiacture of theshuttle. Said die sections are rigidly held together and interlocked to prevent accidental shifting thereof relatively to each other. For this purpose each of the die sections is provided at one end'with cross tongues 51 and '52 (Figs. 1, 3 and l) which 2.0 fit into corresponding grooves 53 and 54 formed in theopp'osite ends of the adj ining section to thus locate the sections with respect to each other so that the ends of their curved surfaces are flush, and sothat the rows of types on the various .die sections align. The tongues and grooves also prevent radial and lateral shifting offs aid die sections since they are at right angles to 'eachother. They further prevent incorrect assemblage of said sections, After the die sections have been assembled they may be secured toeach other by a flange or ring 55 (Figs. 1;2and'5) which is detachably mounted on the die by screws 55 threaded into holes 51 in said die sections. "'After'the flange 3.5 is attached to the die two partie lly"forrned shuttles 29 are placed into the aperture 30 thereof, each being located laterally 1 1 han els! (Fis 2 an me by n- 59 on the die sections;

said shuttle blanks being located circumferentially orthe apertur by auge blocks o members 60 located slots 5! and extending across the channel 5Bf a ther flange 62 (Figs. 2 and 6) is subsequently secured to the opposite face of the die by screws .62 which are also threaded into the holes 51. The flanges and 61 are provided with "grooves 63 and 54 to conform with the shape of the'flangesfl and 2.8 ofthe shuttle blank and into ,5! which the shuttle flanges fit. Thus it will be under'stood that the shuttle blanks are firmly secured inthe die after the flanges 5,5 and 6| are secured thereto, to assist in preventing accidental shifting ofthe shuttleblanks whilebeing acted upon by Q the roller means. It will further be understood that the flanges form with the die sections a guide groove in which the rollers 10 and H operate. It will also be understood that the flange 55 because of the groove 63 assists in locating the shuttles circumferentially of the aperture of the die or in other words relatively to the types of the die sections.

As previously stated there are three tiers or rows of types 43 (Fig. 2). These rows of types have spaces therebetween and the die has three corresponding rows of types 32. Accordingly each one of the rollers '58 and H is provided with two annular grooves 88 thus dividing each roller into three sections 39, each section engaging the shuttle behind a row of types so as to press only the metal from the body 26 of the blank which registers with the rows of types. This construction of the rollers also forms ribs 90 on the back of the shuttle between the grooves at in the rollers. It will be understood that with this arrangement of grooved rollers less pressure is necessary than would otherwise be required to flow the metal from the blank into the types of the die.

Provision is made to limit the outward movement of the rollers iii and H so as to control or determine the depth to which said rollers may work into the shuttles and thus prevent their being rolled too thin. To this end the shafts l2 and it of the rollers IQ and H engage the inner surfaces 92 and 93, formed on each of the flanges 55 and iii, when the rolling operation is complete. It will be understood, due to the confinement of the shuttles by the flanges 59, that the corners of the shuttle are protected against breaking during the operation of the rollers.

Inner surfaces st of the blocks 66, at the ends of the shuttle, are flush with the bottoms of the grooves in the back of the shuttles at the completion of a rolling operation. It should be understood that the blocks 68, in addition to locating the shuttle blanks in the die, constrain them or, in other words, serve also to prevent creeping of the metal in the direction of the length of the shuttles which tendency is produced by the action of the rollers, which may otherwise result in shearing of the types from the face of the shuttles during the rolling operation.

After the completion of a rolling operation the die 3| may be removed from the chuck. Said die may then be disassembled and the shuttles removed. therefrom.

While certain preferred embodiments of the invention have been shown and described, it will be understood that changes in the form, arrangements, proportions, sizes and details thereof may be made without departing from the scope of the invention as defined in the appended claims.

I claim:-

1. A die for forming types on a segmental type carrier, said die having a concaved surface, types on said face, and devices on said die and adapted to adjoin the ends of the type carrier to constrain it in said die.

2. A die for forming a segmental type carrier of a typewriting machine, said die having a curved surface, types in intaglio on said surface, said devices extending up from said surface and engaging the ends of the type carrier to constrain it in said die.

3. A die for forming type carriers of a typewriting machine, said die comprising four sections, each section having a concaved surface, the

die when assembled having a circular aperture to receive two oppositely disposed blanks, each blank extending over the concaved surfaces of two adjacent die sections, types in intaglio in each of the portions of the concaved surfaces overlapped by the blanks, and devices on the die sections to constrain the type carriers on said die.

4. A die for forming a type carrier, said die being composed of a plurality of detachable sections, lnterfitting male and female connections between said sections, said die having a circular opening therein, types on the face of said circular opening, and means on said die to secure said sections together.

5. A die for forming a type carrier, said die including two detachable sections, each having a curved inner surface forming part of a cylindrical opening in said die, cross tongues on the end of one section extending into cross grooves of the other section to form an interlocking connection therewith, types on each section, and means to secure said sections together.

(3. A die for forming types on a curved type carrier, said die comprising a plurality of sections and having a circular aperture, types in intaglio on the surface of said die forming the border of said aperture, and detachable flanges on said die to hold the die sections together and also hold the shuttle in place with its curved outer face against the types.

'7. A die for forming types on a segmental type carrier, said die having a concaved surface, types on said face, devices on said die and adapted to adjoin the ends of the type carrier to constrain it in said die, and detachable elements on said die to hold said die sections together.

8. A die for forming types on a segmental type carrier, said die having a concaved surface, types on said face, devices on said die and adapted to adjoin the ends of the type carrier to constrain it in said die, and detachable elements on said die to hold said die sections together, said elements having grooves therein into which portions of the type carrier extend so that said elements may also serve to hold the type carrier against the types of said die.

9. A die for forming types on a segmental type shuttle for a typewriting machine, said die comprising a plurality of die sections each having types thereon, and detachable flanges supported on the die sections to hold them together and to form with said sections a guide way for a device to act on said shuttle.

10. A die for forming types on a segmental type carrier, said die comprising two sections each having curved surfaces with types thereon, and a projection on one of said die sections extending into an aperture on the other die section to locate said sections in a radial direction so that said surfaces are flush where the sections adjoin each other.

11. A die for forming types on a segmental type carrier, said die comprising two sections each having curved surfaces with types thereon, means between said die sections to locate said sections in a radial direction so that said surfaces are flush where the sections adjoin each other, and means between said die sections to locate the die sections with respect to each other in a direction at right angles to the first mentioned locating means to align the types of one section with those of the other section.

12. A die for forming types on a segmental type carrier, said die comprising two sections each having curved surfaces with types thereon, means between said die sections to locate said sections in a radial direction so that said surfaces are fiush where the sections adjoin each other, means between said die sections to locate the die sections with respect to each other in a direction at right angles to the first mentioned locating means to align the types of one section with those of the other section, and means detachably secured to said die sections to hold them together.

13. A die for forming types on a plurality of type segments, said die including a plurality of sections for each segment, said sections fitting together end to end to form a circular aperture, and a projection at one end of each die section extending into an aperture at the opposite end of the adjacent die section to properly locate two adjacent sections with respect to each other.

14. A die for forming types on a plurality of type segments, said die including a plurality of sections for each segment, said sections fitting together end to end to form a circular aperture, means at one end of each die section to engage the opposite end of the adjacent die section to properly locate two adjacent sections with respect to each other, a ring to fit into said cylindrical aperture, and means to secure said ring to said die sections to hold them together.

15. A die for forming a type shuttle for a typewriting machine, said die including two die sections, each section having types thereon, means to detachably secure said sections together. and means to locate a partly formed shuttle with respect to the types.

16. A die for forming a type shuttle for a type writing machine, said die including two die sections, each section having types thereon, means to detachably secure said sections together, and means on the securing means to locate a partly formed shuttle with respect to the types.

17. A die for forming types on a segmental type carrier for a typewriting machine, said die comprising a plurality of die sections each having types thereon, and detachable flanges supported on the die sections to hold them together and to form with said sections a guide way for a device to act on said shuttle, each of said flanges having a groove therein to accommodate one of two flanges on the type shuttle.

18. A die for forming a type shuttle for a typewriting machine, said die including two die sections, each section having types thereon, means to detachably secure said sections together, means to locate the detachable means in a definite position on the die sections, and means on the detachable means to locate a partly formed shuttle relatively to the types on the die sections.

19. A die for forming a segmental type carrier, said die including two complemental sections each section having a concaved surface which forms a continuation of the other section when the sections are assembled end to end, a portion of a font of types on the concaved surface of each die section, means to hold said sections together, and means to prevent incorrect end to end assemblage of said sections to insure correct positioning of the type font portion with respect to each other.

20. A die for producing a segmental type shuttle, said die having a concaved channel therein, and transversely extending members one in each end of the efiective portion of said channel.

21. A die for producing a segmental type shuttle, said die including two detachable type bearing sections and having a concaved channel therein and extending lengthwise of said sections, transversely extending members one in each end of the effective portion of said channel, means to hold said sections together, and means to prevent end to end assembling of the said die sections except in a position in which the transverse sections are at the opposite ends of the efiective portion of said groove.

22. A die for producing a segmental type shuttle, said die including two detachable type bearing sections and having a concaved channel therein and extending lengthwise of said sections, transversely extending members one in each end of the effective portion of said channel, means to hold said sections together, and means located between the adjoining ends of said sections to prevent incorrect end to end assemblage of said sections. HENRY L. PITMAN. 

